
html, body, div, span, applet, object, iframe, h1, h2, h3,
h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite,
code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b,
u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody,
tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header,
menu, nav, output, ruby, section, summary, time, mark, audio, video {
    margin: 0;
    padding: 0;
    font-weight: normal;
    font-family: 'Microsoft Yahei', 'Heiti SC', Simsun;
    line-height: 1;
    -webkit-tap-highlight-color: transparent;
}

@media only screen and (min-width: 375px) and (max-width: 413px) {
    html {
        font-size:18px !important
    }
}

@media only screen and (min-width: 414px) {
    html {
        font-size:20px !important
    }
}

@media only screen and (min-width: 428px) {
    html {
        font-size:24px !important
    }
}

@media only screen and (min-width: 481px) {
    html {
        font-size:28px !important
    }
}

@media only screen and (min-width: 569px) {
    html {
        font-size:32px !important
    }
}